强激光与粒子束2011，Vol.23Issue(7)：1867-1872,6.DOI:10.3788/HPLPB20112307.1867
Zr粉粒径对Zr/KClO4烟火剂燃烧特性的影响
Effects of zirconium size on combustion characteristics of Zr/KP pyrotechnics
摘要
Abstract
Aiming at solving the problem of low pumping efficiency of typical Zr/KClO4 pump source for pyrotechnically pumped laser, influence of particle size of Zr powders on the combustion property of Zr/KClO4 was investigated. It was indicated when the particle size of Zr powders decreased from 61. 375 μm to 18. 675 μm, the ignition temperatures of Zr/KC104 dropped from 506. 40 ℃ to 492. 42 'C , flash radiation lasting time shortened from 60 ms to 25 ms, peak flash intensities increased about 1 times. Spectral measurement showed the radiation spectra of Zr/KClO4 were continuous spectra with superposition of selective lin-ear or band emissions of excited atoms or molecules. With the decrease of Zr particle, the emission of molecular ZrO strength-ened, and radiation efficiency within visible ranges was also increased. As for pumping Nd-doping laser medium, the radiation spectra had the highest distribution proportion using 800 mesh Zr powders and shortest flash pulse width. It is suggested that em-ploying fine Zr powers favors a high laser output when other conditions are similar.关键词
烟火药激光器/Zr粉/粒径/燃烧特性/辐射光谱Key words
pyrotechnically pumped laser/Zr powders/particle size/combustion property/ radiation spectra/分类
信息技术与安全科学引用本文复制引用
张强,康晓丽,罗江山,唐永建,易勇,李恺..Zr粉粒径对Zr/KClO4烟火剂燃烧特性的影响[J].强激光与粒子束,2011,23(7):1867-1872,6.基金项目
国家自然科学基金项目(10804101) （10804101）
